{"id":"CVE-2026-55494","published":"2026-09-30T17:16:47.100","lastModified":"2026-09-30T19:57:08.043","description":"Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.4, Tugtainer Agent allows unauthenticated access to Docker management APIs when AGENT_SECRET is not configured. The Agent uses request signatures to protect its API routes. However, in agent/auth.py, the signature verification function returns successfully if Config.AGENT_SECRET is empty. This causes protected Agent APIs to become accessible without authentication. This issue has been patched in version 1.30.4.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-284"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Quenary/tugtainer/commit/0052a5544e187a4d12f771838a8a23ca4afb61cd","tags":[]},{"url":"https://github.com/Quenary/tugtainer/releases/tag/v1.30.4","tags":[]},{"url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7","tags":[]},{"url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7","tags":[]}],"exploitRefs":[{"url":"https://github.com/Quenary/tugtainer/commit/0052a5544e187a4d12f771838a8a23ca4afb61cd","tags":[]},{"url":"https://github.com/Quenary/tugtainer/releases/tag/v1.30.4","tags":[]},{"url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7","tags":[]},{"url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows unauthenticated access to Docker management APIs due to an empty AGENT_SECRET configuration, enabling unauthorized control over Docker containers.","exploitability":"Exploitation is relatively easy if AGENT_SECRET is not configured, requiring only unauthenticated access to the Agent APIs.","blast_radius":"If exploited, attackers could gain full control over Docker containers, leading to potential data loss, system compromise, and service disruption.","remediation":"Upgrade to Tugtainer version 1.30.4 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["auth-bypass","docker","api","misconfiguration"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-01T08:43:48.054Z"}}